ticket, glpi_logs.new_value = null

[orthagh]

In my local GLPI instance with data of 10 years, I have a few lines of historical with new_value = null.
It breaks the timeline view of related tickets:

[2024-10-31 10:47:20] glpiphplog.CRITICAL:   *** Uncaught Exception TypeError: Glpi\RichText\RichText::getTextFromHtml(): Argument glpi-project/illustrations#1 ($content) must be of type string, null given, called in src/Log.php on line 834 in src/Glpi/RichText/RichText.php at line 90
  Backtrace :
  src/Log.php:834                                    Glpi\RichText\RichText::getTextFromHtml()
  src/CommonITILObject.php:8051                      Log::getHistoryData()
  src/Ticket.php:3975                                CommonITILObject->getTimelineItems()
  src/CommonGLPI.php:667                             Ticket->showForm()
  ajax/common.tabs.php:112                           CommonGLPI::displayStandardTab()
  ...Glpi/Controller/LegacyFileLoadController.php:59 require()
  vendor/symfony/http-kernel/HttpKernel.php:101      Glpi\Controller\LegacyFileLoadController->Glpi\Controller\{closure}()
  ...ymfony/http-foundation/StreamedResponse.php:106 Symfony\Component\HttpKernel\HttpKernel::Symfony\Component\HttpKernel\{closure}()
  vendor/symfony/http-foundation/Response.php:423    Symfony\Component\HttpFoundation\StreamedResponse->sendContent()
  src/Glpi/Kernel/Kernel.php:255                     Symfony\Component\HttpFoundation\Response->send()
  public/index.php:58                                Glpi\Kernel\Kernel->sendResponse()